Finding the Fourth Proportional to 126,353.28, 174,368.64 and 69,768.96
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Solution
The fourth proportional to 126,353.28, 174,368.64 and 69,768.96 is: 96,281.78
Step by Step Solution
- Step 1: Write the proportion equation
126,353.28 : 174,368.64 = 69,768.96 : x - Step 2: Convert to fraction form
126,353.28/174,368.64 = 69,768.96/x - Step 3: Cross multiply
126,353.28x = 174,368.64 × 69,768.96 - Step 4: Simplify right side
126,353.28x = 12,165,518,669.41 - Step 5: Solve for x
x = 12,165,518,669.41/126,353.28 - Step 6: Final answer
x = 96,281.78
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.